Question

Difference between Molarities and Molality.


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Answer 1

Explanation:

Both molarity and molality are measures of a chemical solution's concentration. ... The molality describes the moles of a solute in relation to the mass of a solvent, while the molarity is concerned with the moles of a solute in relation to the volume of a solution.

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Answer 2

Explanation:

MOLARITY:-

1. Molarity of a given solution is defined as the total number of moles of solute per litre of solution.
2. Mathematical expression is M = number of moles of the solute /Volume of solution given in terms of litres.
3. Depends on volume of the whole solution.
4. Unit sign expressed as (M)
5. Molarity has a unit of moles/liter.

MOLALITY:-

1. Molality is defined as the total moles of a solute contained in a kilogram of a solvent.
2. Mathematical expression is m = Numbers of moles of solute/Mass of solvent in kgs m = (g ✕ 1000)/(W ✕ m).
3. Depends on the mass of the solvent.
4. Unit sign expressed as (m).
5. Molality has units of moles/kg.